US2354346A - Combination harvester-thresher - Google Patents

Description

July 25, 1944. w. F. M GREGOR 2,354,346

COMBINATION HARVESTER THRESHER Filed Feb. 12, 1940 e Sheets-Sheet 1 vA TTORNEY.

July 25, 1944. w. F. MacGREGQR 2,354,346

COMBINATION 'HARVESTER THRESHER v Filed Feb. 12, 1940 s Sheeiis-SheetB 4 INVENTOR;

Wmmcz E MhcGRsaoR DECEASZ-D R/cHnRu D. MILL/5 E. B. HAND, ADMINISTRATOR'S,

' A TTORNEK July 25,1944.

w. F. MacGRE GOR 2,354,346

COMBINATION HARVESTER THRESHER Fig 3 Fild Feb. 12. 1940 es Sheets-Sheet :s

ATTORNEY W. F. M QGREGOR COMBINATION HARVESTER THRESHER July 25, 1944.

Filed Feb. 12, 1940 6 Sheets-Sheet.4

Fig.5

lOb

' INVE WALLACE E MACGREGOR, DELE s E DQ 5 RICHARD D. MILLER 8:53. HAN

0, ADMIN/S TRA TORS, I BY v I W M A TTORNEY.

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July 25,1944. 7 F, MacGREGOR 2,354,346 QOMBINATIONIHARVESTER THRESHER Filed Feb. 12,- 1940 e Sh eets-She et 5,

Fig 12 INVEN TOR. WALLACE E MACGREGOR, oscsnsso, R/cHaRD D. MILLERYKz' EB. Hn/vo, HDMINISTRA TORS,

ATTTQ'ORNEK July 25, 1944. v w; F. M GREGOR 2,354,345

- COMBINATION HARVESTER THRESHER I I Fil'ed Feb. 12, 1940 6 Sheets-Sheet 6 INVENTOR. WALL/1 c [E MAc GREG 0R, 05654550,

' RICHARPRNIHEPK'EEIMND, nmmlsrmrons,

ATTORNEY.

Patented July 25, 1944 COMBINATION HARVESTER-THRESHER Wallace F. MacGi-egor, deceased, late of Racine,

Wis., by Richard D. Miller and E. B. Hand, administrators, Racine, Wis, assignors to J. I. Case Company, Racine, Wis., a corporation Application February 12, 1940, Serial No. 318,504

4 Claims.

The present invention relates to combination harvester threshers commonly known as combines, and particularly to the general purpose type adapted for harvesting grain, beans, peas, and other crop growths, and which may be readily transported and operated by a tractor, and an object of the invention is to generally improve the construction and operation of devices of .this class.

A further object is to provide a machine of this character limited in size and capable of eiiicient operation with a minimum of manual attendance.

Further objects are to provide improvements I in the draft mechanism .of such combines whereby the combine may be made to trail in diiierent lateral relations to the tractor; improved mechanism for filling and emptying the bin on a combine; improved means for feeding material from the cutting mechanism to the cylinder; improved means for eliminating undesirable seeds from the cleaned grain; improvements in the construction of part of the conveying mechanism, and improvements in the construction of a reel for a combine. v

Other objects and advantages will be apparent from the attached specification and accompanying drawings in which:

Figure 1 is a longitudinal vertical sectional view of a combine embodying the invention.

Fig. 2 is a view in the nature of a diagram, showing the drives to the various parts and the manner in which they cooperate in the operation of the machine.

Fig. 3 is an enlarged plan view of a, portion of the machine.

Fig. 4 is ,avertical sectional view on the line |4 of Fig. 3.

Fig. 5 is an end view'of a portion of a reel indicated in Fig. 14. Fig. 6 is an enlarged detail elevation of certain mechanism indicated in Fig. 3.

Fig.7 is a perspective view of certain details indicated in Fig. 3.

Fig. 8 is an enlarged elevation of certain mechanism indicated in Fig. 3.

Fig. 9 is an enlarged plan view of certain sprockets indicated in Fig. 2.

Fig. 10 is' an elevation .of a Fig. 2. Fig. 10' is a sectional view taken on the line l0"---|ll' of Fig. 10.

Fig. 11 is a plan view of a sickle drive indicated in Figs. 2 and 3.

Fig. 12 is an elevation of a weed screen attachment.

drive indicated in Fig. 13 is a sectional view taken on the line Iii-I3 of Fig. 12.

Fig. 14 is a perspective view of the entire machine.

As seen in Fig. 14, the combine illustrative of the invention includes a body portion l, consisting of a header 2, a thresher 3, a grain container or bin 4,- and a draw bar and accompanying mechanism 5, the whole being drawn by a tractor not shown, and actuating the mechanism of the combine through a power take-oh, generally designated as 6.

. The whole operates generally in a manner common to these machines, namely, that the tractor draws the combine through the field in a laterally oifset position while operating the mechanism through the power take-01f 6, while the header 2 cuts the grain which travels directly to the rear of the header and into and through the threshing mechanism 3, the clean grain being deposited in bin 4 and the straw or vines being discharged at "I (Fig. 1), onto the ground. For transportation a draw bar element 8 may be swung to the position shown in dotted lines in Fig. 3 for narrowing the tread of the complete outfit, to comply with the usual restrictions for travel on the highway.

Returning to a detailed description of the mechanism, header 2 comprises a cutter bar of suitable construction generally designated as 9, including aplurality of guards Ill-l0 and a sickle ll. Sickle II is reciprocated in a manner to be later described for the purpose of cutting the grain or vines which are directed by a reel, generally designated as l2 (see also Fig. 1), onto a draper, canvas, or conveyor l3, the conveyor running about a lower roller ll, Fig. 1, and conveying the cut material rearwardly and upwardly toward the threshing mechanism. At its upper end conveyor l3 passes over a roller l5 and material on the conveyor is compacted by a second conveyor or draper It, generally above roller l5 and running over rollers l1 and II. The crop is therefore out and laid back onthe canvas in a thin even layer, the full width of the canvas, and proceeds up toward the threshing mechanism without any substantial change in direction.

At the top of canvas l3, the material is directed downwardly onto a floor or platform l9, over which it slides into a combined auger and beater member, generally designated as 20. In order to assist in this action and toprevent back feeding beneath canvas IS, a roller 2! may be positioned beneath and preferably beyond above mentioned roller is if desired. Roller 2| rotates wardly onto rack 31.

clockwise, as seen in Fig. 1, to oppose any material tending to be carried entirely around roller l5 and between the returning run of canvas l3 and deck 22 of header 2.

Auger member 20 rotates counter-clockwise in a trough or chamber 23, and has a center section 24 comprising beater paddles 25 and 26. Material at the mid portion of canvas [3 is accordingly engaged by these paddles and impelled rearwardly across a panel 21 extending from an opening 28 (Fig. 3) in the rear oi trough 23 to the front portion of a concave unit 29. Above unit 29, a cylinder generally designated as 38 ter-clockwise, as seen in Fig. 1, and drawing material from panel 21 between itself and .concave 29.

Opening 28, Fig. 3, and cylinder 38, in the present illustrative embodiment, are not the full width of canvas 13, and accordingly material spread in the above mentioned thin layer across said canvas must be consolidated for passage through opening 28. For this purpose a short auger portion 3|, in the present instance having a right hand lead, is arranged as an extension of beater 24 at the left end thereof, while a-similar extension portion 32, but having a left hand lead is arranged at the right end of beater 24. Rotation of this assemblage will accordingly draw material from the left side of canvas l3 toward the beater, while the auger portion 32 will draw brace member 48, extending beneath the header operatesin well-known manner, rotating counmaterial from the right side of canvas |3 toward I the beater, whereby all the material coming from sickle 9 will be directed into opening 28 and cylinder 30:

Cylinder 30 includes a plurality of cylinder teeth 34-34 held on the cylinder by suitable fastening means as 3535 or other well-known threshing elements such for example as rasp bars not shown, which normally move at ,a' relatively high speed.

Beyond concave 29, a series of fingers 36 permit the escape of threshed kernels and conduct the straw upwardly onto astraw rack 31, which may be of suitable or well-known construction. A beater 38 acts to compact the straw and other material and to urge it downwardly and rear- Any flying kernels or the like are intercepted by a check flap 38' movably suspended in range of such material, but which may be readily pushed out of the way by the straw if the volume thereof requires the extra space.

Kernels escaping between fingers 36 and dropping through straw rack 31 are collected on a grain pan 39 and urged rearwardly to a chatter sieve 40, having a tailings section 4|, the grain falling through chafier sieve 48 to a cleaning sieve 42, and the tailings falling'through section 4| and a passageway 43 to tailings auger 44. A blast of air is supplied by a fan 45 and directed upwardly through sieves 42, and 4|, carrying the chafi outwardly through opening 1, while the clean grain drops through sieves 4|! and 42 to a pan 46 and gravitates to a clean grain auger 41. Straw rack 31, grain pan 39, and sieves 48, 4| and 42 are given a shaking motion by mechanism to be presently described. This completes the course of the crop material .through the machine.

For gathering crops at different heights, header 2 is adjustable, being pivoted to body portion I on the axis of roller l5. Swinging of the header up' and down accordingly does not disturb' the relation between roller l5 and upper canvas I6.

The header is counterbalanced by a bifurcated 1 and pivoted at the front of body portion Member 48 includes arms 49 and 59 which are urged upwardly by counterbalancing springs as 5| anchored to an axle 53 or other convenient portion of the combine and pulling rearwardly against arms as 54, fixed with above mentioned arms 49 and 50. The latter arms are connected with the under side of header 2 as by links or compression members 56 and 51. The tension of springs 5| may be regulated, as for example by Reel I2 is supported for adjustment in its relation to cutter bar 9 and comprises a shaft 6|, Fig. 14, having a spider 62 carrying outwardly extending arms 63-63 spaced by braces 64-64, the whole constituting a support generally des- I ignated as 65. A similar support 66 is disposed at a point spaced from support 65 and has arms 6161, the corresponding arms of the respective supports being connected by bats 68-68 which engage the crop for urging it into contact with cutter bar 9 and laying it on the canvas l3. As seen in Fig. 5, bats 68 are adjustably connected to the arms by means of fittings, plates, clamps or thelike 69-69, bolts or other suitable fastening means 10, 1 I, extending through the arms and plates and holding the plates rigidly on the arms.

Suitable means is provided for shifting the plates with relation to the arms as holes 12 and 13. Thus for tilting the bats to tend to press the crop down, bolts 10 are removed and replaced through the arms and holes 12, first bringing holes 12 into registration with the disclosed location of bolts 10. The bats will then be in the dotted position D. For tilting the bats for lifting a crop, bolts 1| are removed and holes 13 brought into registration with the arms and the bolts replaced, whereupon the bats will be in the dotted position U. It will be understood that this structure is duplicated for each bat.

Shaft 6| is carried in bearings 14 and 15, Fig. 14, supported from the header as follows: A

yoke 16 having arms 11 and 18 is extended across the header within a housing 19 enclosing above mentioned upper draper l6 and having end portions and 8|. Yoke 16 is preferably hollow, or otherwise formed to receive extensions 82 and 83 slidable in the arms 11 and 18, carrying above mentioned'bearings 14 and 15.. Suitable means as holes 8484, engageable bypins or the like 85, are provided for longitudinal adjustment of the reel. Yoke 16 is journaled in housing 19 and by swinging therein provides for raising and lowering the reel.

Yoke 16 is maintained in any desired position above header 2 by a strut 86 pivoted to arm 11 adjacent to pin 85' and also to deck 22 at 81. Strut 86 comprises a tubular or other suitable portion 88 having slidably arranged therein, a

bar 89, suitable adjusting means being provided as holes 90 engageable by a pin 9| or other suitable locking means. A similar strut 92 is provided, pivoted to arm 18 in a similar-manner.

It will be noted that since yoke 18 is pivoted 'suitable discharge point beyond the bin.

assess:

in housing a, and supported from deck :2, that adjustments of header 2 will cause substantially corresponding. movements of yoke I8 and accordingly reel I2. Any desired relation between erably' hinged or otherwise readily removable for inspection of the beater element.

Grain auger 41 connects withan elevator 01 grain from the bottom of the threshing portion into the bin for filling the same. Much of this same apparatus is used for emptying the bin.

For this purpose a connection in the form of achute, pipe or the like I", extends from the bottom of bin 4 into a housing III, Fig. 2, at thefoot of elevator 81, a slide, valve or the like I02 normally closing the passageway through chute I". By withdrawing the slide, grain may be admitted from bin 4' into elevator 91 from which it will be delivered in the above described manner to auger 99. Auger 99 has an extension In,

Figs. 2 and 14, which is hinged to or otherwise readily removable from auger 89. when bin 4 t is to be emptied, extension IN is fitted on auger 99, the combined structure extending completely across bin 4, as suggested in dotted lines, to a Auger 99 has a clutch portion In which engages a complementaryrlutch portion II! in extension t when the extension is applied and through which the latter is driven by auger 99. Means is provided for actuating auger 41. elevator 91 I" and I I1 and bale III for locking the latter relatively to draw bar I.

In Fig. 6, bale I is positioned for holding member 8 in transport position and projects through the opening in member I 08. By withdrawing pin III, member I may be swung toward the position shown in Fig. 3. as by steering the tractor to the left, member. I II being free to pivot about the end of extension 8* between members I and I01. When draw bar 8 has assumed the desired position, bale III may be secured, as shown in Fig. 3, by replacing pin H5. The parts may be restored to transport position byagain withdrawing pin III and backing the tractor. The front of member a may be of any suitable construction, but in the present instance is flattened and bifurcated, as shown in Fig. 6, and fixed as by bolts III and 8 to a plate 9, having a series of holes I2II-I2l for the reception plate.

of bolts II I and Ila to adjust the height of the Any suitable coupling pin receiving element as I2| may be carried'by the plate and through which arrangement a suitable coupling height may be obtained to carry the combine level with substantially any tractor.

As seen in Fig. 7, member 8 supports above mentioned power take-oil shaft 8, a U shaped support I22 being welded or otherwise secured to member 8 and having its legs I22 and I24 perforated as at I2I'-I25. A bracket or-support I28 is fixed with the upstanding legs I23 and I24, as by bolts I21 and I28, for. vertical adjustment relatively to support I22. Bracket I28 has an upper surface providing holes or the like I29-I29, in which a suitable bolt or other fastening means associated with a support I30 may be engaged.

/ a Support I30 carries, for rocking movement thereand. auger 99 independently of the balance of the combine as will appear.

Draw bar it includes an outer member I", Fig.. 3, extending forwardly from axle i3 and joined therewith at a point adjacent stubble wheel 6|. Another member I01 extends forwardly from beneath body portion I and connects with a pivot or fulcrum support or box Ifll, both members I" and I0! being offset, in the present instance to the left of the direction of travel of the combine. Member I08 is slotted backwardly from pivot support IN to about the point I09, to permit the projection of above mentioned member I. Member 8 is, conveniently formed of a heavy tubular element and fulcrumed on a pin or the like IIO, carried in above mentioned pivot support I for swinging movement either in line with the general direction of draw bar 8 or transversely thereto, as shown in dotted lines for bringing the machine more nearly into trailing relation with the tractor as above explained. When so positioned, the rear end 3* of member 8, projects through above mentioned bifurcated member I". Suitable means is provided for maintaining member I in desired position. In the present instance a bale III, or similar element, having extremities H2 and III, Fig. 6. between which portion! is in, in any suitable manner, a bearing III in which'is joumaled above mentioned power takeofl shaft 8. By selecting the most appropriate 'holes for bolts I21 and I28 and support. I30, shaft 8 may be placed in the most advantageous position for operation from a power take-01f, regardless of variations in the location of such power take-oil on various tractors. A shield I32 may be supported in any suitable manner from above mentioned support I30 for protecting the operator or others from being injured by'the rotating v shafts.

Member s also supports regulating means for the adjustment of the height of header 2. A

brace I33, Fig. 3, welded or otherwise sultably .flxed with-member 8 projects upwardly toward header 2. 8 member I ma extend from the projecting extremity of brace I33 to above mentioned member I22 for further strengthening the structure. Brace I33 carries a quadrant I35 fixed therewith and a lever I" is pivoted on quadrant I35 as by a pin Ill'or the like, and has a rearward extension In projecting over a portion of header 2 to a point approximately in the transverse plane of above mentioned pivot llii, I

Lever I is required to lock the header in adjusted position-and, to make it rigid enough for this purpose, it has a brace portion I39 passing back of above mentioned brace I33 and contacting a spacer I40 rigidly fixed with the back of engagedand pivoted on-a pin Ill, is journaled. v

adjacent its closed'.end on a removable pin III passing through a brace Iii fixed with members said brace.

brace I33, spacer I and brace I, the result Pin III passes through lever I",

rigid in character to prevent undesired upward movement of header 2. Member I43 may be of any suitable construction, but in the illustrative embodiment, as seen in Fig. 8, extension I" in this instance is formed with a journal portion I, extending into a block Ill held between the arms I and Ill of a bifurcated strap portion I by pintles as I49. Portion I is bolted or otherwise adjustably joined, as by bolts ISO-I50 to a strap portion IBI having a stem I52 passing through an inverted U shaped yoke I53, stem I 52 being threaded and engaging a nut IN within the yoke. Yoke I83 supports, as by pintles I55- I, a block lit in which is joumaled a portion discharge auger It for emptying bin-l while the rest of the machine is at rest. While the bin is emptying, it is therefore possible to utilize the time to inspect, adjust or lubricate the machine as a whole without danger from the proximity of moving parts.

Sleeve I81 has fixed therewith a pulley or the like I18 actuating, through a plurality of belts or other flexible elements I'll-I10, a pulley or the like I80 on the axis or main shaft III of cyl- Although any suitable 'rotative and connecting elements may be used, in the present instance V belts are contemplated and pulleys I51 of above mentioned frame member I42. In-

this manner a rigid spacing of portion I and portion I" and accordingly of lever I" and header 2 is obtained, while relative rotary motion and misalignment necessary because of the armate paths of the two elements is provided. Other constructions of such elements as I", however, are contemplated and the invention is not to be taken as limited by this description, or in fact in any manner except as defined in the claims.

This completes the description of the general constructional features of themachine, it being understood that frame members of suitable type may be and are included where necessary for making the machine stable and rigid, but such expedients being well-known to those skilled in the art, and not relating to the present invention it is not considered necessary to describe them further.

The drives for the various units originate in a power take-oil shaft Ill, Fig. 2, forming a part of tractor T, a universal joint generally'designated as I58 transmitting the rotation to a spline shaft generally designated as I", and shaft I" transmitting the rotation througha universal joint ISO to above mentioned shaft 6. Shaft i extends backwardly along the draw bar to a uni versai joint IGI which drives a short shaft I82 extending into a gear box generally designated as IE3. Gear box I82 contains suitable bevel gears I and I 8! transmitting-the rotation to a transverse shaft I having journaled thereon a sleeve I81. Suitable clutch means of well-known or other convenient type I",,is provided for clutching sleeve I01 with shaft I" for rotation therewith.

Shaft I, however, may rotate without driving sleeve I" when clutch Ill is disengaged, and,

to consider this situation first, shaft I rotates within sleeve I81 and actuates a pulley I", the shaft being carried in a bearing I'll suitably supported on body portion l.

Pulley It. drives through a belt "I or other flexible member, a pulley "2 on a shaft I13 extending from and driving above mentioned auger It. A sprocket Ill on'shaft III drives, through a chain or the like I", a sprocket I'll fixed with a shaft Ill forming a part of and actuating above mentioned elevator 01 in wellknown manner, elevator '1 driving above mentioned clean grain auger 41. The details of these units exclusive of the external drivesbeing well known, no further description is considered necessary. i

It will be noted that with the mechanism so far described, elevator O1 and anger ll may be actuated without driving sleeve I. The remainder of the machine being driven from said I18 and I" are of any suitable type having adjustable flange spacing. By adjusting the flanges it is possible to obtain an adjustment of the cylinder speed to exactly suit various conditions.

' when a large change in speed is desired, for example in threshing peanuts, pulleys Ill and Il! may be exchanged for others of suitable sizes not shown to get the correct cylinder speed.

Sleeve I" carries a sprocket "2 driving, through a-chain or the like I, a sprocket III on a shaft I" carrying above mentioned fan 46, shaft IOi-being offset or cranked at Ill and I81 and carrying pitmen Ill and Ill connected as shown in Fig. l for reciprocating cleaning shoe 46.

Chain I, Fig. 2,.also drives a sprocket Ill fixed with a crank shaft "I and actuating through pitmen Il2'and Ill, bell cranks as I I, Fig. 1' connected in well-known manner for reciprocating straw rack 81 and grain pan or conveyor 39. These elements forming no part of the present invention need not be further'described.

Crank shaft m carries a pulley or similar element m which drives, through a belt or the like I", a pulley I91 on a shaft I forming the axis of'above mentioned beater ll.

Sleeve III also carries a sprocket or similar element It! driving, through a chain 2", a sprocket 2 on a shaft 202 forming the axis of above mentioned combination auger and beater 20. Shaft 202 extends through member 2. and carries a sprocket or like element 2 driving.

through a chain 2, a sprocket 2|! on a shaft draper jrolier Il. Shaft 20! carriesa sprocket sleeve, it is possible to operate the elevator and I see driving, through a chain 2", a sprocket 2II actuating, through a suitable or well-known type of overload release clutch generally designated as All, above mentioned reel shaft II.

' Returning to chain In this element also drives a sprocket 2|! on a shaft 2 .which carries and rives above mentioned roller I! for actuatinl draper or canvas II. Shaft 2 also carries a crank 2N which drives a pitman 2i! pivotally connected to a bell crank member 2Il connected ,as by a link 2|. to above mentioned sickle II.

This completes the, description of the drives to the various elements.

Returning to the reel drive, various speeds for the reel are desirable, and for this purpose shaft 2 as shown in Fig. 9 carries a plurality of sprockets III, 220 and above'meutioned sprocket all, th sprockets being arranged in line on shaft 208 and prevented from rotating relatively to each other by interfltting jaw clutch portions 22I-22I which are preferably identical on 'all of the sprockets. Shaft 20! also carries collars 222 and 223, fixed therewith as by pins 224 and 2" and havins iaw portions 2 identical with those on asses graduated in size to cover the desirable range of speed of reel l2 and may be rearranged on shaft 282 by withdrawing pin 224, removing collar 222 and arranging .the desired sprocket in line with sprocket 2i i. desired sprocket, collar 222 and pin 224 being previously replaced, whereupon the desired speed will be obtained in shaft GI and reel l2. Collars 222 and 222 drive the various sprockets through clutch portions 221, as will be apparent. Other interntting means for driving the sprockets are contemplated as equivalent. v

The variation in the sizes of sprockets 2ll, 202 and 222 requires an adjustment in the length of chain 2l5 and for this purpose a roller or other rotatable element 228, Figs. and 10', is supported for rotation from arm 18. A support 221 pivotally mounted on arm 18 carries a roller 222, supported for rotation thereon, chain 2 I ll passing roller 228. Angular-adjustment of support 221 accordingly adjusts the effective length of chain Chain 2'! is then applied to the 2" to the proper tension 'regardless of the size of sprocket on shaft 208. Suitable means as a clamp 228 engaging a segment or the like 22! fixed with support 221 is provided for maintaining the support in position.

Pitman 2L6 as seen in Fig. 11 has a bearing housing 228 carrying any suitable type of anti-.- friction bearing 221, engaging a crank pin 222 fixed in above mentioned crank member 2l5, housing 23li'carrying a pivot 222 connecting the housing with a shaft portion 284 of the pitman.

Bell crank 2" may be 'of any suitable construction but in the present instance it is folded fromwith the pitman and .journaled on pin 223. Pin

Pitman 2 l6 housing 82 and adapted to remove undesirable seeds from the cleaned grain. This auger conveyor includes a tubular portion 25l having a lower opening 252 within which is rotatively sup-. ported an auger 252. A perforated sleeve or shroud 254 encloses tube Ni and is preferably, although not necessarily, arranged to be clamped thereabout as by flanges 255 and 255 which may be forced towardeach other as by bolts 251-251. Sleeve 254 may have a plurality of sets of perforations 258, 259 and 280, any one of which may be brought into register with opening 252 by rotating the sleeve about tube 25l. The perforations may be of severalsizes whereby they may be adapted to pass the weed seeds but not the very little mechanism over that already on the combine.

The operation of the machine is thought to be clear from the above description. Sumcient to say the draw bar element 8 is connected with a suitable tractor, the power. take-oil of which is connected to shaft 5. Member 8 is swung cut- 7 wardly for harvesting and inwardly for transporting purposes, when harvesting the crop being cut by sickle I l and traveling directly backwardly and upwardly toward the threshing mechanism.

- lit is then gathered and condensed to thewidth of cylinder 20 by'the beater-auger 20, between the cylinder and concave where the grain is threshed from the straw and separated therefrom in well-known manner. The clean grain is emptied into bin 4 by means of anger 41, elevator 95 and auger 99. When it is desired to empty bin 248 carries a bushing 24: of suitable material which may be yieldable in character, with which is engaged above mentioned link 2l8.

Link 2H8 comprises separable clamping units 244 and 245 clamped together by suitable means as a bolt 248 in intimate engagement with bushing 242 and also with a ball element or the like 241, fixed with sickle ll. Bushing 242 may yield sumciently to reduce any hammering and to cushion the action of the sickle. Bearing. element 228 embraces a fulcrum pin 248 inwardly displaced from pin 229 and-rigidly mounted on a frame portion 249 extended from header 2. By virtue of the inward positioning of fulcrum pin 248, a very rigid mounting is provided, while avoiding excessive weight in the frame construction at this point. Also the outwardly directed link 2" provides for location of bell crank 2" close to the header while still allowing free action of the sickle.

Shaft 2, on which crank 2l5 is mounted, is I located at the pivot point of header 2 relative to body portion I, so that the range of movement of sickle H remains the same regardless of the adjustment of header 2 about shaft 2M.

A modified type of auger conveyor generally designated as 252, Figs. 12 and 13, may be pro vided if desired, extending from above mentioned 4, clutch I88 may be disengaged thereby preventing operation of all elements of the machine except shaft I58. auger 41, elevator 91 and auger 99. Auger section I02 is swung into position to form a continuation of auger 89 and valve I02 is opened. Upon starting of the power take-oil,

rain will then be discharged through chute I00,

elevator 91, auger 99 and extension I03, into a waiting wagon or receptacle.

Reel i2 may be adjusted up or down or forward or back by releasing pins or latches 85 and 5!, chain tightener 221 taking care of the adjustment, of chain 2i 0 to accommodate the'difference in sprocket spacing. Likewise different 1. A bin structurefor a threshing means in-- cluding an elevator mounted in fixed relation to said bin and at oneside thereof for raising grain from the threshing means, and power driven conveying means extending from the top of the elevator to a point over the bin for filling the bin with grain from the elevator, comprising an auger conveyor having a casing, and a receptacle disposed beneath the casing within the bin, said casing being perforated for the escape of undesirable seeds into the receptacle prior to delivery of the grain from the conveyor into the bin.

2. A bin structure for a threshing means including an elevator mounted in fixed relation to said bin and at one side thereof, for raising grain to the bin, and power driven conveying means extending from the top of the elevator to a point 'overthe bin for filling the bin with grain from the elevator, means for admitting grain from the bottom oi the bin to the elevator for emptying the bin, and a power driven extension conveying means adapted for conveying grain completely across the bin and discharging it into a separate receptacle, said extension" conveying means being disposed in driven relation to the first mentioned power driven conveying means and being removable from position on said first mentioned conveying means to provide for filling the bin. I

8. Avbin structure for a threshing means including an elevator disposed in fixed relation to the bin for raising grain toa point adjacent the top of the bin, driving means for the elevator and power actuated conveying means extending from the top of the elevator to a point over the bin for filling the bin with grain from the elevator, said driving means being adapted to actuate said power actuated conveying means, means for admitting grain from the bottom of the bin into the elevator for emptying the bin, and an extension conveying means driven from and hinged to the first mentioned conveying means for removal therefrom to provide for flow of grain from the first mentioned conveying means into the bin for filling the same.

4. A bin structure for a combine, including an elevator disposed in fixed relation to the bin for raising grain to a point adjacent the top of the bin, driving means for the elevator and an auger conveyor extending from the top of the elevator to a point over the binfor filling the bin with grain from the elevator, said driving means being adapted to actuate said auger conveyor, means for admitting'grain from the bottom of the bin I to the elevator for emptying the bin, and an extension amer conveyor hinged to the first mentioned auger conveyor and adapted to convey grain completely across said bin to a point oi. discharge outside of said bin. and said extension auger conveyor being removable by virtue of its,

hinged connection to provide for flow of grain from the first mentioned auger conveyor to the bin for filling the same.

RICHARD D.

' E. B.-HAND,

Administrators of the Estate of Wallace F.

MacGregor, Deceased.

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